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Something stinks, and it's coming from a science project in Ms. Gleason's classroom. Could someone have sabotaged the volcano? Looks like another mystery for the best ... More
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Twelve-year-old Jack, his younger sister, and the family's teenage foster child Troy go to Yellowstone National Park, where Jack's mother, a wildlife veterinarian, is ... More
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Grizzly cubs are disappearing from Glacier National Park, and the Landon family must figure out why! But for Jack, the real mystery is his sister Ashley's strange behavior. ... More
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This thrilling series roars back to life with the release of Mystery #13, Night of the Black Bear. Something very strange is going on in Great Smoky Mountains National Park. A ... More
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Sixth-grader Liza K., one of five homeless people living in an unspoiled forest in southern Florida, searches for a missing alligator destined for official extermination and ... More
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While visiting the Everglades National Park with their parents, the Landon children uncover the mystery of dying manatees and learn important lessons about the natural ... More
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Eighth-grader Tony Isidoro follows a trail of environmental clues to try and figure out what ecological imbalances might have caused the death of the town's best-known robin. More
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Something weird is happening at the science fair! Our friend Jessie's project a really cool robot is missing! Ashley and I think someone took the robot to keep Jessie from ... More
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Twelve-year-old Jack and his younger sister visit Mesa Verde National Park, where they delve into the park's history while gradually uncovering the mysterious past of their ... More
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After Spinner Shafter catches a cutthroat trout in the Snake River, she and her cousin Alligator search the nearby mountains to determine where the endangered fish came from ... More
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